Energy saving control for a field device
First Claim
Patent Images
1. A control device for a field device, comprising:
- a control unit controlling the field device, anda separate monitoring unit, wherein the control unit selectively switches to one of an operating mode and a sleep mode, wherein the control unit, before the sleep mode is assumed, transmits a deactivation signal to the separate monitoring unit, wherein the separate monitoring unit, after an activation signal has been received, switches the control unit to the operating mode, wherein the separate monitoring unit switches the control unit to sleep mode after the deactivation signal has been received by disconnecting the control unit from a power supply, wherein the control unit, prior to transmitting the deactivation signal, switches further components of the field device off, and wherein the control unit, after activation of the control unit, switches the further components on.
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Abstract
A control for a field device comprises a monitoring unit that is separate from a control unit for controlling the field device which monitoring unit, when the control unit is in a sleep mode, waits for an activation signal in order to switch the control unit to the operating mode.
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Citations
9 Claims
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1. A control device for a field device, comprising:
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a control unit controlling the field device, and a separate monitoring unit, wherein the control unit selectively switches to one of an operating mode and a sleep mode, wherein the control unit, before the sleep mode is assumed, transmits a deactivation signal to the separate monitoring unit, wherein the separate monitoring unit, after an activation signal has been received, switches the control unit to the operating mode, wherein the separate monitoring unit switches the control unit to sleep mode after the deactivation signal has been received by disconnecting the control unit from a power supply, wherein the control unit, prior to transmitting the deactivation signal, switches further components of the field device off, and wherein the control unit, after activation of the control unit, switches the further components on. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A field device, comprising:
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a control device including a control unit controlling the field device and a separate monitoring unit, wherein the control unit selectively switches to one of an operating mode and a sleep mode, wherein the control unit, before the sleep mode is assumed, transmits a deactivation signal to the separate monitoring unit, wherein the separate monitoring unit, after an activation signal has been received, switches the control unit to the operating mode, wherein the separate monitoring unit switches the control unit to sleep mode after the deactivation signal has been received by disconnecting the control unit from a power supply, wherein the control unit, prior to transmitting the deactivation signal, switches further components of the field device off, and wherein the control unit, after activation of the control unit, switches the further components on.
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8. A method for controlling a field device, comprising:
- switching to a sleep mode by a control unit;
transmitting of a deactivation signal from the control unit to a separate monitoring unit prior to switching to the sleep mode; switching off further components of the field device with the control unit prior to transmitting the deactivation signal, switching the control unit to the sleep mode by the separate monitoring unit after receipt of the deactivation signal by disconnecting the control unit from a power supply in the sleep mode; receiving of an activation signal by the separate monitoring unit; and switching of the control unit to an operating mode by the separate monitoring unit after receipt of the activation signal; switching on the further components with the control unit after activation of the control unit.
- switching to a sleep mode by a control unit;
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9. A non-transitory computer-readable medium on which a program element for a control for a field device is stored, the program element when executed by the control, carries out a method which comprises of the following steps:
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switching to a sleep mode by a control unit; transmitting of a deactivation signal from the control unit to a separate monitoring unit prior to switching to the sleep mode; switching off further components of the field device with the control unit prior to transmitting the deactivation signal; switching the control unit to the sleep mode by the separate monitoring unit after receipt of the deactivation signal by disconnecting the control unit from a power supply in the sleep mode;
receiving of an activation signal by the separate monitoring unit; andswitching of the control unit to an operating mode by the separate monitoring unit after receipt of the activation signal; switching on the further components with the control unit after activation of the control unit.
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Specification